Norma Oficial Mexicana

The Norma Oficial Mexicana (Official Mexican Standard), abbreviated NOM, is the name of each of a series of official, compulsory standards and regulations for diverse activities in Mexico.

However, without the NOM stamp of legitimacy, it is not guaranteed that the bottle contains tequila.

NOM does not indicate the location of the distillery, merely the parent company or - in the case where a company leases space in a plant - the physical plant where the tequila was manufactured.

NOM-137-SEMARNAT-2003 - Issued on the Official Gazette on April 29, 2003, and related to atmospheric pollution, gas desulfurizing plants and sour condensate, and control of emissions of sulfur compounds.

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